Hair accessory



FIG. 1 is a front view of the hair accessory;

FIG. 2 is a rear view of the hair accessory;

FIG. 3 is a top view of the hair accessory;

FIG. 4 is a bottom view of the hair accessory;

FIG. 5 is a perspective view of the hair accessory; and,

FIG. 6 is a perspective view of the hair accessory in a use environment.

The broken lines depict a person and form no part of the claimed design. 

CLAIM The ornamental design for a hair accessory, as shown, and described. 